Simple Basic 3 Led Flip Flop Flashing Circuit Using NPN Transistor.

Simple Basic 3 Led Flip Flop Flashing Circuit Using NPN Transistor.

A Very Interesting Schematic Of 3 LED Flip Flop Flashing Circuit. The Circuit Actually Is a Multi-vibration Which Starts Blinking LEDs One by One When Power Is Applied. This Led Flasher Circuit Can Be Operated with Any Voltage From 5 To 12 Volts. The Flashing Rate of The Circuit Can Be Increased or Decreased by Changing the Values of Resistance or Capacitor. The Circuit Is Using Two General-purpose 2n3904 NPN Transistors but You Can Also Use Other Transistors, For Example, 2n2222 and 2n4401, Etc.

Things Needed for the Basic 3 Led Flip Flop Flashing Circuit:

-3×2N3904 Transistor NPN. (Or Any NPN Transistor)
-Switch. (You Can Use Any Push Button You Have)
-9v Powers Supply. (You Can Use A Lithium-ion (Li-ion) Battery 18650,3.7v)
-Red Led. (Any Color Led Just for See Flashing)
-Green Led. (Any Color Led Just for See Flashing)
-Yellow Led. (Any Color Led Just for See Flashing)
-3×10kΩ Resistance. (You Can Use 10kΩ Resistance or Big Value for More Time Delay)
-3×330Ω Resistance. (You Can Use 220Ω This Resistance for Protecting Your Led)
-3×100uf Capacitor. (You Can Use Big Capacitor Range for More Time Delay)
-9v Battery Holder. (For Connect Your Circuit With 9v Battery)

Schematic Drawing of Basic 3 Led Flip Flop Flashing Circuit:

Schematic Drawing of Basic 3 Led Flip Flop Flashing Circuit:

Illustration Drawing of Basic 3 Led Flip Flop Flashing Circuit:

Illustration Drawing of Basic 3 Led Flip Flop Flashing Circuit:

A YouTube Video Explaining How to Make and Test A Simple 3 Led Flip Flop Flashing Circuit: